Oct 11, 2008 · I awoke this morning to an annoying noise. There was a chirping sound coming from somewhere. I checked the bathroom. Sounds were faint. It could be a water leak. No leaks. Next I searched the closet in the master bedroom that holds a gas water heater. It's about 10'x10' and holds out-of-season clothing, old blankets, suitcases, and junk.